Switchboard



April 29, 1924. Y

c. E. OGDEN v SWITCHBOARD Filed Sept. 19 1919 zflflzzfarx Patented Apr.29, 1924.

UNITED STATES PATENT OFFICE.

CLARENCE E. OGDEN, OF CINCINNATI, OHIO.

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Application filed September 19,1919. Serial No. 324,996.

.State of Ohio, have invented certain new and useful Improvements inSwitchboards, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming-apart of this specification.

My invention relates to electric switch boards, and has particularreference to switch boards arranged and adapted for the charging ofstorage batteries of motor vehicles.

The principal object of the present invention is to provide aswitch/board construe.- tionj in which the panel arran ement is elastic,that is, of such a nature 51211, units may be successively added as itis desired to increase the capacity of the board.

A further object of the present invention is to provide a panelconstruction and frame therefor, wherein the board proper is relieved ofthe .strain of.sup orting the necessary resistance 'grids. n switchboard panels, as heretofore constructed, the resistance grids aremounted upon proper supports secured to the panel, said panel beingusually of slate. Such construction imposes the weight of the grids uponthe more or less fragile material of the board, and

hence breakages and consequent necessity for replacement of the boardsare more or less frequent. It is to the prevention of these defects, myinvention, in the present aspect, is directed.

Further objects of the invention will ap pear from the followingdetailed description thereof.

In the drawings the figure illustrates a switch board constructed inaccordance with the present invention, the same being shown inperspective, and the frame being provided with but a portion of thepanels for which it is ultimately designed.

The supporting frame ofthe present invention comprises four upright, 1,constructed of standard angle bars, and cross bars 2,. also constructedof similar angle bars. The cross bars 2 are arranged in pairs, asclearly shown in the drawings, one of each pair-extending between thefront uprights 1, and the other, between the two tear uprights. Thecross bars 2 are spaced at sultable intervals to provide spaces betweenthe ments 7.

bars for the insertion of the switch board panels, in such a manner thatwhen a number of panels have been placed within the frame the same maybe arranged in con tiguou's vertical relation. The frame 1 is alsoprovided with bottom and top cross braces 3.

Each of the panels comprises a slate board or panel a and a. tray orsupporting frame -5, for resistance grids 6, the tray being secured tothe rear of the board in any suitable manner. The front of the board isprovided with the usual switches and instru- Thetray 5 is arranged toslide betweeh the uprights 1 of the frame and to rest upon cross bars 2at the front and rear of the frame. When in position the unit or panelis secured at the front by means of bolts 8 which secure the board 4 tothe front uprights. From the foregoing description it will be seen thatin a frame constructed as above set forth, units or panels may beinserted as required, and, of course, inter-connected electrically in'the usual manner. When a plurality of the units or panels have beenplaced within the, frame,the boards 4 are vertically contiguous to eachother so that thewhole resentsa uniform and neat appearance. n the top.space it is ordinaril preferable to place a panel 4 provided wit theusual voltmeter and ammeter 9. When a unit or panel is inserted in theframe the tray 5 rests at the front and rear upon the cross bars 2, andthus the weight ofthe I elastic switch board construction which isadapted to be added to as requirements for increased capacity'arise,.and wherein the fragile panels are relieved of all excess orundue strain.

Having thus fully described my invention, which I claim is new, anddesire to secure by Letters Patent is:

In a switch board, in combination with a frame having supporting postsand crossbars mounted between said posts, a. charging unit comprising atray arranged to rest on said cross-bars between said posts, resistancemounted in said tray, and a panel secured at one end of said tray andarranged to be secured to the front pair of sts.

" CLARENCE E. O DEN.

